WO1997008471A1 - Torsionally elastic coupling with various coupling components for multi-stage torque transmission - Google Patents
Torsionally elastic coupling with various coupling components for multi-stage torque transmission Download PDFInfo
- Publication number
- WO1997008471A1 WO1997008471A1 PCT/EP1996/003620 EP9603620W WO9708471A1 WO 1997008471 A1 WO1997008471 A1 WO 1997008471A1 EP 9603620 W EP9603620 W EP 9603620W WO 9708471 A1 WO9708471 A1 WO 9708471A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coupling
- elements
- stage
- clutch
- rubber element
- Prior art date
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- Ceased
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/64—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts
- F16D3/68—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic elements arranged between substantially-radial walls of both coupling parts the elements being made of rubber or similar material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/60—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising pushing or pulling links attached to both parts
- F16D3/62—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising pushing or pulling links attached to both parts the links or their attachments being elastic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/76—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
Definitions
- the invention relates to a torsionally flexible coupling with different coupling elements for a multi-stage torque transmission between drive and output side, at least one first coupling element for a first coupling stage in a lower load range and the further coupling elements for at least one further coupling stage in a higher one Load range are provided.
- At least one rubber element vulcanized on the drive and output side is provided for the first clutch stage, and in that the further coupling elements are matched to the at least one rubber element in such a way that they start from a defined load range of the at least one rubber element be effective.
- the advantages of the vulcanized rubber elements known per se are thus taken over, namely in particular a defined behavior at the zero point and no point of discontinuity when the direction of rotation changes.
- the other coupling elements are also suitable for high load ranges, so that the two-stage or multi-stage coupling according to the invention covers a wide range of performance.
- the at least one rubber element and the coupling elements of the further coupling stage are arranged at the same axial height - based on the coupling axis - but spaced apart from one another in the circumferential direction.
- the coupling has a relatively small axial length.
- the tension elements are radially preloaded in the unloaded state.
- the force transmission through the tension elements starts at lower angles of rotation, so that the transition between the first and second clutch stages and, in particular, the start of the force transmission through the tension elements does not occur suddenly, but gently.
- highly stable tapes or ropes in particular made of steel, are provided as tension elements. This further increases the performance of the coupling, since the tension elements can also be used for very high load ranges.
- FIG. 1 shows a section of a front view of a first embodiment of a two-stage clutch according to the invention, in which the different clutch elements are arranged essentially in a common radial plane,
- FIG. 2 shows a section through the coupling according to FIG. 1 along the section line II-II in FIG. 1,
- FIG. 3 shows a further section through the coupling of FIG. 1 along the section line III-III in Fig. 1, and
- the coupling (1) has an annular coupling flange (3) which is fixedly connected to suitable elements of the output side which are not shown in detail.
- the drive-side coupling hub (2) and the driven-side coupling flange (3) are connected to one another by various elastic coupling elements (5-, 6), all elastic coupling elements (5, 6) on the one hand on the coupling hub (2) and on the other are attached to the coupling flange (3) and extend essentially radially outwards between the coupling hub (2) and the coupling flange (3).
- the coupling elements serve on the one hand two diagonally opposite elastic disc segments (6), which are made of rubber, with respect to the longitudinal axis (4). Radially on the inside, each of the two rubber disc segments (6) is vulcanized onto an inner metal part (7) and an outer metal part (8).
- the metal part (7) is firmly connected to a radial flange segment of the coupling hub (2) by means of an arc-shaped fastening flange and a plurality of screw connections (9).
- the upper metal part (8) is connected to the coupling flange by means of analog screw connections (9), which are not shown in the drawings
- the coupling elements (5) are arranged, which represent tab elements (5) serving as tension elements.
- the arrangement of such tab bodies (5) as elastic coupling members is already known from DE-OS 25 10 197.
- Each tab body (5) has a diamond-like shape (FIG. 1) and is provided at its upper and at its lower end with a metal receiving sleeve penetrating the tab body (5) axially parallel to the coupling axis (4).
- the flap bodies (5) are themselves made of rubber and reinforced by means of additional fabric inserts. As a result, the flap bodies (5) have a considerably higher load capacity than the rubber disk segments (6).
- the link bodies (5) are also considerably more torsionally stiffer than the rubber disk segments (6).
- Each tab body (5) is connected to two radial flange parts of the coupling hub (2) by means of a bolt (10) pushed through the receiving sleeve.
- a metal flange (12) fastened on the output side also has two radial flange attachments, on which the upper end of each bracket body (5) is held by means of a bolt (11) pushed through the upper receiving sleeve.
- the flap body (5) can be pivoted within certain limits about the longitudinal axes of the two bolts (10 and 11), so that the flap body (5) also has a certain degree of torsional flexibility.
- the coupling (1) per quarter circle segment is shown in the illustration In the exemplary embodiment, two tab bodies (5) are provided, so that the coupling (1) has a total of four tab bodies (5) and two rubber disk segments (6).
- the tab bodies (5) and the rubber disc segments (6) are matched to one another in such a way that, for a lower load range, initially only the rubber disc segments (6) are effective and when the clutch (1) is started up from idling, the tab bodies (5) gradually become effective, in particular for power transmission in high load ranges.
- tab bodies and rubber disk segments are also in a row, i.e. arranged essentially in a common radial plane.
- the rubber disk segments are of narrower design, so that a total of four rubber disk segments are used.
- a rubber disk segment and a tab body are alternately arranged one behind the other in the circumferential direction.
- rubber disk segments (6) and, on the other hand, tab bodies (5) are arranged as coupling elements between the drive side and the driven side.
- the tab bodies (5) and the rubber disk segments (6) are open the coupling axis (4) - axially spaced one behind the other.
- the coupling hub (2a) is provided with an axial attachment (14), which also increases the axial length of the receiving bore (13a).
- the corresponding lower metal part (7) is provided with a radially downwardly protruding attachment lug, which with the aid of Screw connections (16) are fastened to a radially oriented disc (15), which in turn is fastened to the axial shoulder (14) of the coupling hub (2a) with the aid of screw connections.
- the rubber disk segment extends over the entire circumference of the clutch (1), so that it represents a disk ring encircling the entire circumference.
- this exemplary embodiment would also correspond exactly to the representation according to FIG. 4.
- the different coupling elements are arranged axially one behind the other. The operation of this clutch corresponds to the clutch (1) according to FIGS. 1 to 3.
- the different clutch elements (5 and 6) create a two-stage clutch, the rubber disk segments (6), or a corresponding disk ring, being provided for a first clutch stage in a lower load range for power transmission .
- the torsionally stiffer tab bodies (5) which are much more resilient due to their fabric inserts, are used for the second clutch stage, so that the tab bodies (5) become effective from a certain load range in addition to the rubber disk segment stage already claimed.
- the second clutch stage formed by the tab bodies (5) is added from a certain load range prevents overloading of the first clutch stage, namely the rubber disk segments (6), since the rubber disk segments (6) are caused by different rotation between the drive side and the driven side are only subjected to thrust until the tab bodies (5) become effective.
- the tab bodies are further stabilized in that they are designed as highly stable tension elements in the form of steel strips or steel cables.
- bodies are combined with highly elastic rubber washers or rubber washer segments, as in the illustrated embodiments.
- the tab bodies (5) for the second clutch stage are replaced by alternating claw elements arranged on the drive and output side, which come into positive engagement with one another in the circumferential direction as soon as a defined load range when the clutch is raised from the Idle reached.
- elastic pressure bodies are provided between the adjacent and operatively connected claw elements on the drive or on the output side, which press the claw elements against each other and thus the start of the power transmission between the drive side and Steam output side.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Drehelastische Kupplung mit verschiedenen Kupplunσs- elementen für eine mehrstufige Drehmomentübertragung Torsionally flexible coupling with various coupling elements for multi-stage torque transmission
Die Erfindung betrifft eine drehelastische Kupplung mit ver¬ schiedenen Kupplungselementen für eine mehrstufige Drehmo¬ mentübertragung zwischen Antriebs- und Abtriebsseite, wobei wenigstens ein erstes Kupplungselement für eine erste Kupp¬ lungsstufe in einem unteren Lastbereich und die weiteren Kupplungselemente für wenigstens eine weitere Kupplungsstufe in einem höheren Lastbereich vorgesehen sind.The invention relates to a torsionally flexible coupling with different coupling elements for a multi-stage torque transmission between drive and output side, at least one first coupling element for a first coupling stage in a lower load range and the further coupling elements for at least one further coupling stage in a higher one Load range are provided.
Eine zweistufige drehelastische Kupplung ist aus der DE 43 09 745 AI bekannt. Die erste Kupplungsstufe wird dabei durch Gummirollenkörper und die zweite Kupplungsstufe durch form¬ schlüssig miteinander in Wirkverbindung stehende Klauenele¬ mente gebildet.A two-stage torsionally flexible coupling is known from DE 43 09 745 AI. The first clutch stage is formed by rubber roller bodies and the second clutch stage by claw elements which are positively connected to one another.
Es ist auch bekannt (DE 44 03 477 Cl) , eine dreistufige drehelastische Kupplung vorzusehen, die eine erste drehweiche Kupplungsstufe, eine zweite, erheblich drehsteifere Kupp¬ lungsstufe und eine dritte, drehweiche Kupplungsstufe auf¬ weist. Die verschiedenen Kupplungsstufen sind so aufeinander abgestimmt, daß sie in unterschiedlichen Lastbereichen entwe¬ der hintereinander- oder/und parallelgeschaltet sind. Bekannt sind auch einstufige elastische Scheibenkupplungen, die ein scheibenförmiges Gummielement aufweisen, das an- triebs- und abtriebsseitig jeweils anvulkanisiert ist. Die Vulkanisierungsstellen sind bei solchen Kupplungen Schwach¬ punkte, die die maximal zulässige Schubbeanspruchung des Gum¬ mielementes und damit die Leistungsgrenze für die Kupplung definieren.It is also known (DE 44 03 477 Cl) to provide a three-stage torsionally flexible coupling which has a first torsionally flexible coupling stage, a second, considerably more torsionally rigid coupling stage and a third, torsionally flexible coupling stage. The various clutch stages are matched to one another in such a way that they are either connected in series or / and in parallel in different load ranges. Also known are single-stage elastic disk clutches that have a disk-shaped rubber element that is vulcanized on the drive and output side. In such couplings, the vulcanization points are weak points which define the maximum permissible shear stress on the rubber element and thus the performance limit for the coupling.
Aufgabe der Erfindung iεt es, eine drehelastische Kupplung der eingangs genannten Art zu schaffen, die über ein breites Leistungsspektrum sowohl in geringen Lastbereichen als auch in hohen Lastbereichen eine sichere und exakte Kraftübertra¬ gung gewährleistet.The object of the invention is to provide a torsionally flexible coupling of the type mentioned at the outset, which ensures safe and exact power transmission over a wide range of services both in low load ranges and in high load ranges.
Diese Aufgabe wird dadurch gelöst, daß für die erste Kupp¬ lungsstufe wenigstens ein antriebs- und abtriebsseitig anvul¬ kanisiertes Gummielement vorgesehen ist, und daß die weiteren Kupplungselemente derart auf das wenigstens eine Gummielement abgestimmt sind, daß sie ab einem definierten Lastbereich des wenigstens einen Gummielementes wirksam werden. Für die erste Kupplungsstufe, d.h. für untere Lastbereiche, werden somit die Vorteile der an sich bekannten anvulkanisierten Gummiele¬ mente übernommen, nämlich insbesondere ein definiertes Ver¬ halten im Nullpunkt und keine Unstetigkeitsstelle bei Dreh¬ richtungswechseln. Die weiteren Kupplungselemente eignen sich auch für hohe Lastbereiche, so daß mit der erfindungsgemäßen zwei- oder mehrstufigen Kupplung ein breites Leistungsspek¬ trum abgedeckt ist. Dabei wird ab einem bestimmten Lastbe¬ reich, der unterhalb der maximalen Belastbarkeitsgrenze des anvulkanisierten Gummielementes liegt, die Kraftübertragung durch die weiteren Kupplungselemente übernommen, so daß eine Überlastung des Gummielementes vermieden wird, obwohl die ma¬ ximale Belastbarkeit der wenigstens einen weiteren Kupplungs- stufe wesentlich höher liegt als die maximale Belastbarkeit des Gummielementes und damit der ersten Kupplungsstufe. In Ausgestaltung der Erfindung ist das wenigstens eine Gum¬ mielement Scheiben- oder scheibensegmentförmig ausgebildet. Das Vorsehen von scheibensegmentförmigen Gummielementen hat den Vorteil, daß zwischen verschiedene Gummisegmente andere Kupplungselemente der weiteren Kupplungsstufen in der glei¬ chen Radialebene angeordnet werden können.This object is achieved in that at least one rubber element vulcanized on the drive and output side is provided for the first clutch stage, and in that the further coupling elements are matched to the at least one rubber element in such a way that they start from a defined load range of the at least one rubber element be effective. For the first clutch stage, ie for lower load ranges, the advantages of the vulcanized rubber elements known per se are thus taken over, namely in particular a defined behavior at the zero point and no point of discontinuity when the direction of rotation changes. The other coupling elements are also suitable for high load ranges, so that the two-stage or multi-stage coupling according to the invention covers a wide range of performance. From a certain load range, which is below the maximum load limit of the vulcanized rubber element, the force transmission is taken over by the further coupling elements, so that overloading of the rubber element is avoided, although the maximum load capacity of the at least one further coupling stage is essential is higher than the maximum load capacity of the rubber element and thus the first clutch stage. In an embodiment of the invention, the at least one rubber element is in the form of a disk or a disk segment. The provision of disk-segment-shaped rubber elements has the advantage that other coupling elements of the further coupling stages can be arranged in the same radial plane between different rubber segments.
In weiterer Ausgestaltung der Erfindung sind für die wenig¬ stens eine weitere Kupplungsstufe mehrere über den Kupplungs- umfang verteilte, laschen- oder stegartig ausgebildete und im wesentlichen radial ausgerichtete Zugelemente vorgesehen. Bei diesen Kupplungselementen wird das Drehmoment durch Zugbean¬ spruchung übertragen. Diese Zugelemente haben den Vorteil, daß sie für die der ersten Kupplungsstufe nachfolgenden Kupp¬ lungsstufen eine große Leistungsdichte erzielen, gleichzeitig jedoch eine kompakte Bauform aufweisen.In a further embodiment of the invention, for the at least one further coupling stage, a plurality of pulling elements which are distributed over the coupling circumference, are designed in the manner of tabs or webs and are essentially radially oriented are provided. In these coupling elements, the torque is transmitted by tensile stress. These tension elements have the advantage that they achieve a high power density for the clutch stages following the first clutch stage, but at the same time have a compact design.
In weiterer Ausgestaltung der Erfindung sind als weitere Kupplungselemente formschlüssig wirksame Klauenelemente vor¬ gesehen. Diese Klauenelemente haben den Vorteil, daß sie auch bei einer Überlastung der Kupplung eine Entkopplung von An¬ triebs- und Abtriebsseite verhindern.In a further embodiment of the invention, claw elements with positive locking are provided as further coupling elements. These claw elements have the advantage that they prevent decoupling of the drive and driven side even when the coupling is overloaded.
In weiterer Ausgestaltung der Erfindung sind das wenigstens eine Gummielement und die Kupplungselemente der weiteren Kupplungsstufe auf gleicher axialer Höhe - auf die Kupplungs¬ achse bezogen - jedoch in Umfangsrichtung zueinander beab¬ standet angeordnet. Dadurch weist die Kupplung eine relativ geringe axiale Baulänge auf.In a further embodiment of the invention, the at least one rubber element and the coupling elements of the further coupling stage are arranged at the same axial height - based on the coupling axis - but spaced apart from one another in the circumferential direction. As a result, the coupling has a relatively small axial length.
In weiterer Ausgestaltung der Erfindung sind die Zugelemente im unbelasteten Zustand radial vorgespannt. Dadurch setzt die Kraftübertragung durch die Zugelemente bereits bei geringeren Verdrehwinkeln ein, wodurch der Übergang zwischen erster und zweiter Kupplungsstufe und insbesondere der Einsatzbeginn der Kraftübertragung durch die Zugelemente nicht ruckartig, son¬ dern sanft erfolgt. In weiterer Ausgestaltung der Erfindung sind als Zugelemente hochstabile Bänder oder Seile, insbesondere aus Stahl, vorge¬ sehen. Dadurch wird die Leistungsfähigkeit der Kupplung wei¬ ter erhöht, da die Zugelemente auch für sehr hohe Lastberei¬ che einsetzbar sind.In a further embodiment of the invention, the tension elements are radially preloaded in the unloaded state. As a result, the force transmission through the tension elements starts at lower angles of rotation, so that the transition between the first and second clutch stages and, in particular, the start of the force transmission through the tension elements does not occur suddenly, but gently. In a further embodiment of the invention, highly stable tapes or ropes, in particular made of steel, are provided as tension elements. This further increases the performance of the coupling, since the tension elements can also be used for very high load ranges.
In weiterer Ausgestaltung der Erfindung sind die Klauenele¬ mente alternierend der Antriebs- und der Abtriebsseite zuge¬ ordnet und treten unter Zwischenlagerung elastischer Druck¬ körper miteinander in Wirkverbindung. Die an sich bekannten elastischen Druckkörper bewirken einen relativ sanften Ein¬ satzbeginn des Ineinandergreifens der Klauenelemente. Die formschlussige Mitnahme durch die Klauenelemente verhindert auch im Überlastbetrieb eine Entkopplung von Antriebs- und Abtriebsseite.In a further embodiment of the invention, the claw elements are alternately assigned to the drive side and the driven side and come into operative connection with the intermediate storage of elastic pressure elements. The known elastic pressure bodies cause the engagement of the claw elements to start relatively gently. The form-fitting entrainment by the claw elements prevents decoupling of the drive and output side even in overload operation.
Weitere Vorteile und Merkmale der Erfindung ergeben sich aus den Unteransprüchen εowie aus der nachfolgenden Beschreibung von bevorzugten Ausführungsbeispielen der Erfindung, die an¬ hand der Zeichnungen dargestellt sind.Further advantages and features of the invention emerge from the subclaims and from the following description of preferred exemplary embodiments of the invention, which are illustrated with the aid of the drawings.
Fig. 1 zeigt ausschnittsweise eine Frontansicht einer ersten Ausführungsform einer erfindungsgemaßen zweistufigen Kupplung, bei denen die unterschiedlichen Kupplungs¬ elemente im wesentlichen in einer gemeinsamen Radial- ebene angeordnet sind,1 shows a section of a front view of a first embodiment of a two-stage clutch according to the invention, in which the different clutch elements are arranged essentially in a common radial plane,
Fig. 2 einen Schnitt durch die Kupplung nach Fig. 1 entlang der Schnittlinie II-II in Fig. 1,2 shows a section through the coupling according to FIG. 1 along the section line II-II in FIG. 1,
Fig. 3 eine weiteren Schnitt durch die Kupplung nach Fig. 1 entlang der Schnittlinie III-III in Fig. 1, undFig. 3 shows a further section through the coupling of FIG. 1 along the section line III-III in Fig. 1, and
Fig. 4 einen Längsschnitt durch eine weitere Ausführungsform einer erfindungsgemäßen Kupplung, bei der die unter¬ schiedlichen Kupplungselemente in zwei axial zueinan¬ der versetzten Radialebenen angeordnet sind. Eine elastische Kupplung nach den Fig. 1 bis 3 weist eine Kupplungsnabe (2) auf, die mittels einer Aufnahmebohrung (13) auf eine Antriebswelle eines Antriebsaggregates, insbesondere eines Bootsantriebes, aufschiebbar ist. Die Kupplungεnabe (2) weist eine Mittellängsachεe (4) auf, die im aufgeεchobenen Zustand des Kupplungsflansches (2) mit einer Antriebsachse der Antriebswelle identisch ist. In der Aufnahmebohrung (13) iεt in an sich bekannter Weise eine Axialnut vorgesehen, die in Verbindung mit einem korrespondierenden Paßstück auf der Antriebswelle eine drehschlüssige Mitnahme der Kupplungsnabe4 shows a longitudinal section through a further embodiment of a coupling according to the invention, in which the different coupling elements are arranged in two radial planes which are offset axially to one another. An elastic coupling according to FIGS. 1 to 3 has a coupling hub (2), which can be pushed onto a drive shaft of a drive unit, in particular a boat drive, by means of a receiving bore (13). The coupling hub (2) has a central longitudinal axis (4) which, when the coupling flange (2) is pushed on, is identical to a drive axis of the drive shaft. In the receiving bore (13), an axial groove is provided in a manner known per se, which, in conjunction with a corresponding adapter on the drive shaft, carries the clutch hub in a rotationally locking manner
(2) bei einer Drehung der Antriebswelle gewährleistet. Ab¬ triebsseitig weist die Kupplung (1) einen ringförmigen Kupp¬ lungsflansch (3) auf, der mit geeigneten, jedoch nicht näher dargestellten Elementen der Abtriebsseite fest verbunden ist. Die antriebsseitige Kupplungsnabe (2) und der abtriebsseitige Kupplungsflanεch (3) werden durch verschiedene elastiεche Kupplungεelemente (5-, 6) miteinander verbunden, wobei alle elastischen Kupplungselemente (5, 6) zum einen an der Kupp¬ lungsnabe (2) und zum anderen an dem Kupplungsflanεch (3) be¬ feεtigt sind und sich im wesentlichen radial zwiεchen der Kupplungεnabe (2) und dem Kupplungεflanεch (3) nach außen er¬ strecken.(2) guaranteed when the drive shaft rotates. On the output side, the coupling (1) has an annular coupling flange (3) which is fixedly connected to suitable elements of the output side which are not shown in detail. The drive-side coupling hub (2) and the driven-side coupling flange (3) are connected to one another by various elastic coupling elements (5-, 6), all elastic coupling elements (5, 6) on the one hand on the coupling hub (2) and on the other are attached to the coupling flange (3) and extend essentially radially outwards between the coupling hub (2) and the coupling flange (3).
Als Kupplungselemente dienen zum einen zwei einander - auf die Längsachse (4) bezogen - diagonal gegenüberliegende ela¬ stische Scheibensegmente (6) , die aus Gummi gebildet sind. Radial innen ist jedes der beiden Gummischeibenεegmente (6) an einem inneren Metallteil (7) und an einem äußeren Metall¬ teil (8) anvulkanisiert. Das Metallteil (7) iεt mittelε eines kreisbogenförmigen Befestigungsflansches und mehreren Schraubverbindungen (9) mit einem Radialflanschsegment der Kupplungsnabe (2) fest verbunden. Das obere Metallteil (8) wird mittels analoger Schraubverbindungen (9) , die in den Zeichnungen nicht dargestellt sind, mit dem KupplungεflanεchThe coupling elements serve on the one hand two diagonally opposite elastic disc segments (6), which are made of rubber, with respect to the longitudinal axis (4). Radially on the inside, each of the two rubber disc segments (6) is vulcanized onto an inner metal part (7) and an outer metal part (8). The metal part (7) is firmly connected to a radial flange segment of the coupling hub (2) by means of an arc-shaped fastening flange and a plurality of screw connections (9). The upper metal part (8) is connected to the coupling flange by means of analog screw connections (9), which are not shown in the drawings
(3) fest verbunden. Über den Kreisumfang der Kupplung (1) ge¬ sehen bilden daher die beiden Gummischeibensegmente (6) , von denen in Fig. 1 lediglich eines dargestellt ist, jeweils ein Viertelkreissegment, wobei die beiden Viertelkreissegmente einander diagonal und damit punktsymmetrisch zur Kupplungs¬ achse (4) (Fig. 1) gegenüberliegen.(3) firmly connected. Seen over the circumference of the coupling (1), the two rubber disc segments (6), of 1 only one quarter circle segment, the two quarter circle segments lying opposite one another diagonally and thus point symmetrically to the coupling axis (4) (FIG. 1).
In den verbleibenden Viertelkreissegmenten der Kupplung (1) sind die Kupplungselemente (5) angeordnet, die als Zugelemen¬ te dienende Laschenkörper (5) darstellen. Die Anordnung sol¬ cher Laschenkörper (5) als elastische Kupplungεglieder ist bereits aus der DE-OS 25 10 197 bekannt. Jeder Laschenkörper (5) weist eine rautenähnliche Form (Fig. 1) auf und ist an seinem oberen und an seinem unteren Ende mit jeweils einer den Laschenkörper (5) achsparallel zur Kupplungsachεe (4) durchdringenden Aufnahmehülse aus Metall versehen. Die La¬ schenkörper (5) selbst εind auε Gummi hergestellt und mittels zusätzlicher Gewebeeinlagen verstärkt. Dadurch weisen die La¬ schenkörper (5) eine wesentlich höhere Belastbarkeit auf als die Gummischeibensegmente (6) . Dafür sind die Laεchenkörper (5) auch erheblich drehεteifer als die Gummischeibensegmente (6) . Jeder Laschenkörper (5) wird mittels eines durch die un¬ ter Aufnahmehülse hindurchgeschobenen Bolzenε (10) mit zwei Radialflanεchteilen der Kupplungεnabe (2) verbunden. Ein ab- triebεεeitig befestigter Metallflansch (12) weist ebenfalls zwei Radialflanschanεätze auf, an denen daε obere Ende jedes Laschenkörpers (5) mittels eines durch die obere Aufnahmehül- εe hindurchgeschobenen Bolzens (11) gehalten ist. "Der La¬ schenkörper (5) ist in gewissen Grenzen um die Längεachsen der beiden Bolzen (10 und 11) schwenkbeweglich, so daß eine gewisse Drehnachgiebigkeit auch durch die Laschenkörper (5) gegeben ist. Pro Viertelkreissegment der Kupplung (1) sind beim dargestellten Ausführungsbeiεpiel zwei Laschenkörper (5) vorgesehen, so daß die Kupplung (1) insgesamt vier Laschen¬ körper (5) und zwei Gummischeibensegmente (6) aufweist.In the remaining quarter-circle segments of the coupling (1), the coupling elements (5) are arranged, which represent tab elements (5) serving as tension elements. The arrangement of such tab bodies (5) as elastic coupling members is already known from DE-OS 25 10 197. Each tab body (5) has a diamond-like shape (FIG. 1) and is provided at its upper and at its lower end with a metal receiving sleeve penetrating the tab body (5) axially parallel to the coupling axis (4). The flap bodies (5) are themselves made of rubber and reinforced by means of additional fabric inserts. As a result, the flap bodies (5) have a considerably higher load capacity than the rubber disk segments (6). For this purpose, the link bodies (5) are also considerably more torsionally stiffer than the rubber disk segments (6). Each tab body (5) is connected to two radial flange parts of the coupling hub (2) by means of a bolt (10) pushed through the receiving sleeve. A metal flange (12) fastened on the output side also has two radial flange attachments, on which the upper end of each bracket body (5) is held by means of a bolt (11) pushed through the upper receiving sleeve. " The flap body (5) can be pivoted within certain limits about the longitudinal axes of the two bolts (10 and 11), so that the flap body (5) also has a certain degree of torsional flexibility. The coupling (1) per quarter circle segment is shown in the illustration In the exemplary embodiment, two tab bodies (5) are provided, so that the coupling (1) has a total of four tab bodies (5) and two rubber disk segments (6).
Die Laschenkörper (5) und die Gummischeibensegmente (6) sind so aufeinander abgestimmt, daß für einen unteren Lastbereich zunächst ausschießlich die Gummiεcheibenεegmente (6) wirksam sind und beim Hochfahren der Kupplung (1) aus dem Leerlauf allmählich die Laschenkörper (5) insbesondere für die Kraft¬ übertragung in hohen Lastbereichen wirksam werden.The tab bodies (5) and the rubber disc segments (6) are matched to one another in such a way that, for a lower load range, initially only the rubber disc segments (6) are effective and when the clutch (1) is started up from idling, the tab bodies (5) gradually become effective, in particular for power transmission in high load ranges.
Bei einem anderen erfindungsgemäßen, jedoch nicht dargestell¬ ten Ausführungsbeispiel sind Laschenkörper und Gummiεcheiben- εegmente zwar ebenfalls in einer Reihe, d.h. im wesentlichen in einer gemeinsamen Radialebene, angeordnet. Bei diesem Auε- führungεbeispiel sind die Gummischeibenεegmente jedoch schma¬ ler ausgestaltet, εo daß inεgeεamt vier Gummischeibensegmente eingeεetzt werden. Dabei εind alternierend immer jeweils ein Gummischeibensegment und ein Laschenkörper in Umfangsrichtung hintereinander angeordnet .In another embodiment according to the invention, but not shown, tab bodies and rubber disk segments are also in a row, i.e. arranged essentially in a common radial plane. In this exemplary embodiment, however, the rubber disk segments are of narrower design, so that a total of four rubber disk segments are used. In this case, a rubber disk segment and a tab body are alternately arranged one behind the other in the circumferential direction.
Auch bei dem Ausführungsbeiεpiel nach Fig. 4 sind als Kupp¬ lungselemente zwischen Antriebε- und Abtriebεεeite zum einen Gummischeibensegmente (6) und zum anderen Laschenkörper (5) angeordnet. Im Gegensatz zu dem Ausführungεbeiεpiel nach den Fig. 1 und 3, bei dem die verschiedenen Kupplungselemente (5 und 6) auf gleicher axialer Höhe angeordnet sind, sind beim Ausführungεbeiεpiel nach Fig. 4 die Laschenkörper (5) und die Gummischeibensegmente (6) - auf die Kupplungsachse (4) bezo¬ gen - axial in Abstand hintereinander angeordnet. Dazu iεt die Kupplungεnabe (2a) mit einem Axialanεatz (14) verεehen, durch den auch die axiale Länge der Aufnahmebohrung (13a) vergrößert iεt. An der Kupplungsnabe (2a) sind analog der An¬ ordnung gemäß Fig. 2 mehrere Laschenkörper (5) über den Um¬ fang der Kupplungsnabe (2a) verteilt angeordnet. Der Metall¬ flansch (12a) entspricht im wesentlichen dem Metallflansch (12) gemäß Fig. 2, mit dem Unterschied, daß er ringförmig ausgebildet ist und sich über den gesamten Umfang der Kupp¬ lung (1) erstreckt. Außerdem weist er an εeinem hinteren Ende einen Flanεchansatz für die axiale Befestigung des Metalltei¬ les (8) auf, an dem ein oberer Bereich des jeweiligen Gummi¬ scheibensegmentes (6) anvulkanisiert ist. Das korrespondie¬ rende untere Metallteil (7) ist mit einem radial nach unten abragenden Befestigungsansatz versehen, der mit Hilfe von Schraubverbindungen (16) an einer radial ausgerichteten Na¬ benscheibe (15) befestigt ist, die wiederum mit Hilfe von Schraubverbindungen an dem Axialansatz (14) der Kupplungsnabe (2a) befestigt iεt. Bei einem weiteren erfindungεgemäßen Aus¬ führungsbeispiel ähnlich Fig. 4 iεt das Gummischeibensegment über den gesamten Umfang der Kupplung (1) erstreckt, so daß es einen über den gesamten Umfang umlaufenden Scheibenring darstellt. In einer Schnittdarεtellung würde jedoch auch die- ses Ausführungsbeiεpiel exakt der Darεtellung nach Fig. 4 entεprechen. Bei beiden Auεfuhrungsbeispielen sind die unter¬ schiedlichen Kupplungselemente axial hintereinander angeord¬ net. Die Funktionsweise dieser Kupplung entspricht der Kupp¬ lung (1) nach den Fig. 1 bis 3.In the exemplary embodiment according to FIG. 4, on the one hand, rubber disk segments (6) and, on the other hand, tab bodies (5) are arranged as coupling elements between the drive side and the driven side. In contrast to the embodiment according to FIGS. 1 and 3, in which the various coupling elements (5 and 6) are arranged at the same axial height, in the embodiment according to FIG. 4 the tab bodies (5) and the rubber disk segments (6) are open the coupling axis (4) - axially spaced one behind the other. For this purpose, the coupling hub (2a) is provided with an axial attachment (14), which also increases the axial length of the receiving bore (13a). Analogously to the arrangement according to FIG. 2, a plurality of tab bodies (5) are arranged on the coupling hub (2a) distributed over the circumference of the coupling hub (2a). The metal flange (12a) corresponds essentially to the metal flange (12) according to FIG. 2, with the difference that it is ring-shaped and extends over the entire circumference of the coupling (1). In addition, at its rear end it has a flange attachment for the axial fastening of the metal part (8), on which an upper area of the respective rubber disk segment (6) is vulcanized. The corresponding lower metal part (7) is provided with a radially downwardly protruding attachment lug, which with the aid of Screw connections (16) are fastened to a radially oriented disc (15), which in turn is fastened to the axial shoulder (14) of the coupling hub (2a) with the aid of screw connections. In a further exemplary embodiment according to the invention, similar to FIG. 4, the rubber disk segment extends over the entire circumference of the clutch (1), so that it represents a disk ring encircling the entire circumference. In a sectional representation, however, this exemplary embodiment would also correspond exactly to the representation according to FIG. 4. In both exemplary embodiments, the different coupling elements are arranged axially one behind the other. The operation of this clutch corresponds to the clutch (1) according to FIGS. 1 to 3.
Bei allen Ausführungsformen von erfindungsgemäßen Kupplungen wird durch die unterschiedlichen Kupplungselemente (5 und 6) eine zweistufige Kupplung geschaffen, wobei für eine erste Kupplungεεtufe in einem unteren Lastbereich zur Kraftübertra¬ gung die Gummischeibensegmente (6) , bzw. ein korrespondieren¬ der Scheibenring, vorgesehen εind. Für die zweite Kupplungs- stufe dienen die drehsteiferen und aufgrund ihrer Gewebeein¬ lagen wesentlich höher belastbaren Laschenkörper (5) , so daß die Laschenkörper (5) ab einem bestimmten Lastbereich zusätz¬ lich zu der bereits beanspruchten Gummischeibensegmentstufe wirksam werden. Dadurch, daß ab einem bestimmten Lastbereich die durch die Laschenkörper (5) gebildete zweite Kupplungs- stufe hinzukommt, wird eine Überlastung der ersten Kupplungs¬ stufe, nämlich der Gummischeibensegmente (6) , vermieden, da die Gummischeibenεegmente (6) durch unterschiedliche Verdre¬ hung zwischen Antriebs- und Abtriebsseite lediglich so weit auf Schub beanεprucht werden, bis die Laschenkörper (5) wirk¬ sam werden.In all embodiments of clutches according to the invention, the different clutch elements (5 and 6) create a two-stage clutch, the rubber disk segments (6), or a corresponding disk ring, being provided for a first clutch stage in a lower load range for power transmission . The torsionally stiffer tab bodies (5), which are much more resilient due to their fabric inserts, are used for the second clutch stage, so that the tab bodies (5) become effective from a certain load range in addition to the rubber disk segment stage already claimed. The fact that the second clutch stage formed by the tab bodies (5) is added from a certain load range prevents overloading of the first clutch stage, namely the rubber disk segments (6), since the rubber disk segments (6) are caused by different rotation between the drive side and the driven side are only subjected to thrust until the tab bodies (5) become effective.
Bei weiteren, nicht dargestellten Ausführungsbeispielen der Erfindung sind die Laschenkörper weiter stabilisiert, indem sie als hochstabile Zugelemente in Form von Stahlbändern oder Stahlseilen ausgebildet εind. Auch dieεe verstärkten Laschen- körper sind jedoch wie bei den dargestellten Ausführungsfor¬ men mit hochelastiεchen Gummischeiben oder Gummischeibenseg¬ menten kombiniert.In further exemplary embodiments of the invention, not shown, the tab bodies are further stabilized in that they are designed as highly stable tension elements in the form of steel strips or steel cables. This reinforced tab However, bodies are combined with highly elastic rubber washers or rubber washer segments, as in the illustrated embodiments.
Bei einem weiteren, nicht dargestellten Ausführungsbeispiel der Erfindung sind die Laschenkörper (5) für die zweite Kupp- lungεεtufe durch alternierende antriebs- und abtriebsseitig angeordnete Klauenelemente ersetzt, die in Umfangsrichtung formschlüssig miteinander in Verbindung treten, sobald ein definierter Laεtbereich beim Hochfahren der Kupplung aus dem Leerlauf erreicht iεt. Um εchlagartige Stöße beim Wirksamwer¬ den, d.h. beim Aufeinandertreffen der Klauenelemente zu ver¬ hindern, sind zwischen den benachbarten und in Wirkverbindung tretenden Klauenelementen an der Antriebs- bzw. an der Ab- triebεεeite elastische Druckkörper vorgesehen, die den An¬ schlag der Klauenelemente gegeneinander und damit den Beginn der Kraftübertragung zwischen Antriebεseite und Abtriebsεeite dämpfen. Auch dieεe Klauenelemente sind auf anvulkanisierte Gummischeibensegmente für die erste Kupplungsstufe abge¬ stimmt.In a further exemplary embodiment of the invention (not shown), the tab bodies (5) for the second clutch stage are replaced by alternating claw elements arranged on the drive and output side, which come into positive engagement with one another in the circumferential direction as soon as a defined load range when the clutch is raised from the Idle reached. For sudden impacts when it comes into effect, i.e. To prevent the claw elements from colliding, elastic pressure bodies are provided between the adjacent and operatively connected claw elements on the drive or on the output side, which press the claw elements against each other and thus the start of the power transmission between the drive side and Steam output side. These claw elements are also matched to vulcanized rubber disk segments for the first clutch stage.
Vorstehend wurden lediglich zweistufige Kupplungen beεchrie¬ ben, wobei eine erste Kupplungsεtufe drehweiche und die zwei¬ te Kupplungsεtufe drehεteifere Kupplungεglieder aufwieε. Die Erfindung betrifft jedoch auch Kupplungen mit drei oder mehr Kupplungεstufen, wobei die Drehsteifigkeit von der ersten bis zur letzten Kupplungsεtufe schrittweiεe erhöht wird. In the foregoing, only two-stage clutches have been described, with a first clutch stage having rotationally flexible and the second clutch stage having torsionally stiff clutch members. However, the invention also relates to clutches with three or more clutch stages, the torsional rigidity being increased step by step from the first to the last clutch stage.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995130905 DE19530905A1 (en) | 1995-08-23 | 1995-08-23 | Torsionally flexible coupling with various coupling elements for multi-stage torque transmission |
| DE19530905.7 | 1995-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997008471A1 true WO1997008471A1 (en) | 1997-03-06 |
Family
ID=7770120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1996/003620 Ceased WO1997008471A1 (en) | 1995-08-23 | 1996-08-16 | Torsionally elastic coupling with various coupling components for multi-stage torque transmission |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19530905A1 (en) |
| WO (1) | WO1997008471A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014000783A1 (en) * | 2014-01-22 | 2015-07-23 | Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG | Elastic coupling device for vibration-reduced torque transmission between two shaft sections, in particular for marine applications |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1120269A (en) * | 1955-01-24 | 1956-07-03 | Perrussel Freres Ets | Elastic coupling with variable flexibility |
| FR1178261A (en) * | 1956-07-16 | 1959-05-05 | Metalastik Ltd | Improvements to transmissions |
| DE1951478A1 (en) * | 1969-10-13 | 1971-04-22 | Georg Dr Lang | Torsionally flexible coupling |
| US3727431A (en) * | 1971-10-12 | 1973-04-17 | Twin Disc Inc | Flexible torsional coupling |
| FR2297355A1 (en) * | 1975-01-09 | 1976-08-06 | Mannesmann Ag | HIGH-ELASTICITY SHAFT COUPLING INCLUDING AN ADDITIONAL DEVICE FOR ANGULAR OSCILLATION Cushioning |
| DE2510197A1 (en) * | 1975-03-08 | 1976-09-09 | Stromag Maschf | Moulded textile reinforced rotary coupling element - has textile wound around bolt openings and is used in coupling member |
| DE2630506A1 (en) * | 1976-07-07 | 1978-01-12 | Maschf Augsburg Nuernberg Ag | ELASTIC SHAFT COUPLING |
| GB2082716A (en) * | 1980-08-22 | 1982-03-10 | Lord Corp | Improvements in or relating to resilient links |
| EP0514754A2 (en) * | 1991-05-23 | 1992-11-25 | CENTA-ANTRIEBE KIRSCHEY GmbH | Coupling with high torsional resiliency |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3616232A1 (en) * | 1986-05-14 | 1987-11-19 | Stromag Maschf | Highly flexible shaft coupling |
| DE4309745A1 (en) * | 1993-03-26 | 1994-09-29 | Kirschey Centa Antriebe | Shaft coupling |
| DE4403477C1 (en) * | 1994-02-04 | 1995-04-06 | Kirschey Centa Antriebe | Shaft coupling |
-
1995
- 1995-08-23 DE DE1995130905 patent/DE19530905A1/en not_active Withdrawn
-
1996
- 1996-08-16 WO PCT/EP1996/003620 patent/WO1997008471A1/en not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1120269A (en) * | 1955-01-24 | 1956-07-03 | Perrussel Freres Ets | Elastic coupling with variable flexibility |
| FR1178261A (en) * | 1956-07-16 | 1959-05-05 | Metalastik Ltd | Improvements to transmissions |
| DE1951478A1 (en) * | 1969-10-13 | 1971-04-22 | Georg Dr Lang | Torsionally flexible coupling |
| US3727431A (en) * | 1971-10-12 | 1973-04-17 | Twin Disc Inc | Flexible torsional coupling |
| FR2297355A1 (en) * | 1975-01-09 | 1976-08-06 | Mannesmann Ag | HIGH-ELASTICITY SHAFT COUPLING INCLUDING AN ADDITIONAL DEVICE FOR ANGULAR OSCILLATION Cushioning |
| DE2510197A1 (en) * | 1975-03-08 | 1976-09-09 | Stromag Maschf | Moulded textile reinforced rotary coupling element - has textile wound around bolt openings and is used in coupling member |
| DE2630506A1 (en) * | 1976-07-07 | 1978-01-12 | Maschf Augsburg Nuernberg Ag | ELASTIC SHAFT COUPLING |
| GB2082716A (en) * | 1980-08-22 | 1982-03-10 | Lord Corp | Improvements in or relating to resilient links |
| EP0514754A2 (en) * | 1991-05-23 | 1992-11-25 | CENTA-ANTRIEBE KIRSCHEY GmbH | Coupling with high torsional resiliency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014000783A1 (en) * | 2014-01-22 | 2015-07-23 | Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG | Elastic coupling device for vibration-reduced torque transmission between two shaft sections, in particular for marine applications |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19530905A1 (en) | 1997-02-27 |
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